<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<!-- 盒子 + 浮动 + 定位 -->
		<style type="text/css">
			.dv {
				margin: auto;
				padding: 2px 2px;
				width: 200px;
				height: 200px;
				border: 1px solid #ffd0fb;
				box-shadow: 10px 20px rgba(202 240 180, 0.6);
				border-radius: 100px;
				background-color: cadetblue;
			}
		</style>
	</head>
	<body>
		<div class="dv">2699</div>
	</body>
</html>
